Surprise find in a book convention

Today I went to a book convention with a good friend, all very cheap books there that are actually overstock and stuff like that from stores. Normally they don't have any interesting video game related books but this year they decided to surprise me with some strategy guides. Limited edition strategy guides nonetheless, nice hardcovers with a nice little bonus in it too! I bought the ones from The Last of Us and Tomb Raider, they had some more but those didn't interest me at all. The one from Tomb Raider contained a necklace Lara wears in the game and The Last of Us contained a Firefly keychain.